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----- Original Message -----
From: Party of Citizens <[EMAIL PROTECTED]>
To: STOP NATO! <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Saturday, September 15, 2001 9:55 PM
Subject: Re: Twin Towers, by Andrej Tisma (www.tisma.net) [WWW.STOPNATO.ORG.UK]
Visit our website: HTTP://WWW.STOPNATO.ORG.UK
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>Can anyone explain how a tower hit at the corner would fall 1-2 hours
>later in a perfect demolition manner (straight down)? How would the
>aircraft fuel manage to get distributed so consistently all over that
>layer of the building so as to weaken all of the vertical red iron to
>the same degree at the same time? Why didn't it collapse "lop-sided"?
As we saw in the video clip the actual impact of the
plane had virtually no effect on the tower at all.
Even the explosion of the fuel had little or no effect
either - at that point the tower remained 99% intact.
What led to the collapse of the tower was of course
the heat generated by the comparitively slow burning
of the unburnt fuel on perhaps just one story.
As could be seen in the clip the plane shredded as
it entered the building leaving many of the vertical
building supports intact. The fuel too which was also
travelling at several hundred miles per hour entered
largely through the window frame openings.
At a certain temperature concrete begins to 'pop'
and tiny fragments are thrown off the surface.
This is due to gasses being created from the cement
in the concrete mix exerting pressure.
Since the fuel carried on burning for a period of time
then millions of small fragments flew away from the
concrete pillars and eventually revealed the steel
reinforcment rods inside the vertical pillars.
Eventually the steel rods themselves would have
warmed up, perhaps not melted away but heated
enough for bending to take place once the concrete
support had dissipated.
The only support for the building lay in its shell and
a central pillar with no supportive partition walls inbetween
which suggests that the vertical supports in the shell
and the central pillar may have all heated up fairly
uniformally.
Any slight bending of one of the verticals would have
increased pressure on all the other verticals.
The upper 50 stories of the building remained perfectly
intact and weighed some 50, 000 tons and once
enough verticals around a single floor had bent enough
the upper block began to move downwards and the
ceiling of one stories collided with its own floor.
The initial speed of this decent may not have been extremely
fast, perhaps 100 feet per second but a solid
block weighing many thousands of tons colliding with
the floor is enough to distort all the vertical
pillars beneath it even though they were cold and still intact.
In this way the solid block of upper 50 stories shunted
its way story by story downwards to the ground floor.
At this point the lower stories of the upper block began
collapsing in exactly the same way until the 110 story
collapsed into the 109 story.
Concretely,
Bill.
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